Spec Sheet

Table Of Contents
THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ WITH EIM
68-0311—07 42
4060 Maximum Heat
Recovery Ramp Rate
Off
1° F/hr to 20° F/hr
8° F/hr Commercial No Off: The heating system will begin recovery at
the time that is scheduled.
When a Maximum Recovery Ramp Rate is set,
the thermostat will begin recovery early to
ensure the temperature is reached at the
scheduled time.
Set a Maximum Recovery Ramp Rate based on
the rate that the heating system can recover at
for a mild day in your region. Default setting is
8° F / hour.
Set an Outdoor Temperature that is
representative of a mild day in your region to be
associated with the Maximum Recovery Ramp
Rate. The thermostat will begin recovery at the
optimal time based on a calculated ramp rate,
allowing the system to recover on time and save
energy during changing outdoor conditions.
During recovery, the setpoint changes at a rate
in degrees per hour depending on the outdoor
temperature.
4060 Outdoor
Temperature used
with Maximum Heat
Recovery Ramp Rate
Off
-20° F to 100° F
40° F Commercial No Off: The heating system will begin recovery at
the time that is scheduled.
When a Maximum Recovery Ramp Rate is set,
the thermostat will begin recovery early to
ensure the temperature is reached at the
scheduled time.
Set a Maximum Recovery Ramp Rate based on
the rate that the heating system can recover at
for a mild day in your region. Default setting is
8° F / hour.
Set an Outdoor Temperature that is
representative of a mild day in your region to be
associated with the Maximum Recovery Ramp
Rate. The thermostat will begin recovery at the
optimal time based on a calculated ramp rate,
allowing the system to recover on time and save
energy during changing outdoor conditions.
During recovery, the setpoint changes at a rate
in degrees per hour depending on the outdoor
temperature.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes